instruction:
You are given a sentence and your task is to generate another sentence that supports the given input.
question:
Animal cells lack the rigid cell walls that characterize plant  cells.
answer:
A cell wall is found in a plant cell but not in an animal cell.


question:
Soil provides many of the basic nutrients most plants use in order to grow.
answer:
It is important to protect soil because it has nutrients used by plants to grow.


question:
As alternating current moves back and forth in a wire, magnetic fields are created around the wire.
answer:

Alternative current is produced when a magnet or coil moves back and forth repeatedly.


